| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | include ../scripts/Makefile.include |
| 3 | include ../scripts/Makefile.arch |
| 4 | |
| 5 | ifeq ($(ARCH),x86_64) |
| 6 | ARCH := x86 |
| 7 | endif |
| 8 | |
| 9 | # always use the host compiler |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 10 | HOSTAR ?= ar |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 11 | HOSTCC ?= gcc |
| 12 | HOSTLD ?= ld |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 13 | AR = $(HOSTAR) |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 14 | CC = $(HOSTCC) |
| 15 | LD = $(HOSTLD) |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 16 | |
| 17 | ifeq ($(srctree),) |
| 18 | srctree := $(patsubst %/,%,$(dir $(CURDIR))) |
| 19 | srctree := $(patsubst %/,%,$(dir $(srctree))) |
| 20 | endif |
| 21 | |
| 22 | SUBCMD_SRCDIR = $(srctree)/tools/lib/subcmd/ |
| 23 | LIBSUBCMD_OUTPUT = $(if $(OUTPUT),$(OUTPUT),$(CURDIR)/) |
| 24 | LIBSUBCMD = $(LIBSUBCMD_OUTPUT)libsubcmd.a |
| 25 | |
| 26 | OBJTOOL := $(OUTPUT)objtool |
| 27 | OBJTOOL_IN := $(OBJTOOL)-in.o |
| 28 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 29 | LIBELF_FLAGS := $(shell pkg-config libelf --cflags 2>/dev/null) |
| 30 | LIBELF_LIBS := $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf) |
| 31 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 32 | all: $(OBJTOOL) |
| 33 | |
| 34 | INCLUDES := -I$(srctree)/tools/include \ |
| 35 | -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 36 | -I$(srctree)/tools/arch/$(ARCH)/include |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 37 | WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 38 | CFLAGS := -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS) |
| 39 | LDFLAGS += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS) |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 40 | |
| 41 | # Allow old libelf to be used: |
| 42 | elfshdr := $(shell echo '$(pound)include <libelf.h>' | $(CC) $(CFLAGS) -x c -E - | grep elf_getshdr) |
| 43 | CFLAGS += $(if $(elfshdr),,-DLIBELF_USE_DEPRECATED) |
| 44 | |
| 45 | AWK = awk |
| 46 | export srctree OUTPUT CFLAGS SRCARCH AWK |
| 47 | include $(srctree)/tools/build/Makefile.include |
| 48 | |
| 49 | $(OBJTOOL_IN): fixdep FORCE |
| 50 | @$(MAKE) $(build)=objtool |
| 51 | |
| 52 | $(OBJTOOL): $(LIBSUBCMD) $(OBJTOOL_IN) |
| 53 | @$(CONFIG_SHELL) ./sync-check.sh |
| 54 | $(QUIET_LINK)$(CC) $(OBJTOOL_IN) $(LDFLAGS) -o $@ |
| 55 | |
| 56 | |
| 57 | $(LIBSUBCMD): fixdep FORCE |
| 58 | $(Q)$(MAKE) -C $(SUBCMD_SRCDIR) OUTPUT=$(LIBSUBCMD_OUTPUT) |
| 59 | |
| 60 | clean: |
| 61 | $(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL) |
| 62 | $(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 63 | $(Q)$(RM) $(OUTPUT)arch/x86/inat-tables.c $(OUTPUT)fixdep |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 64 | |
| 65 | FORCE: |
| 66 | |
| 67 | .PHONY: clean FORCE |